I used some maps as references to help make this videos and here these are the videos that helped me
Czechoslovakia- [ Ссылка ]
Poland- [ Ссылка ]
![](https://s2.save4k.ru/pic/xTGEeWAGMMw/maxresdefault.jpg)
I used some maps as references to help make this videos and here these are the videos that helped me
Czechoslovakia- [ Ссылка ]
Poland- [ Ссылка ]